Door-operating mechanism



Feb. 18, 1930. s, B, HASELTINE 1,747,511

DOOR OPERATING MECHANISM Filed June 10, 1926 2 Sheets-Sheet 1 3 TID 4" J2 DOOR OPERATING MECHANISM' f@ 'WQ/7% Patented Feb. 18, 1930 UNEEE@ STATS FATENT OFFICE STACY B. HASELTINE, OF CHICAGO, ILLINCS, ASSGNOR T W. H. MINER,'INC., OF CHICAGO, ILLNOIS, A CORPORATION OF DELAWARE DOOR-OPERATING MECHANISM Application led .Tune 10,

This invention relatesy to door operating mechanisms.

An object of the invention is to provide a simple and efficient door operating mechanism for forcing the door when partly closed to tightly closed position, for holding the same closed, and for forcing the door open to facilitate complete opening of the same.

Another object of the invent-ion is to provide a mechanism of the character described, especially designed for operating doors of the swinging type, including an integral operat-v ing bar fulcrumed upon the door intermediate its ends and mounted for longitudinal reciprocation, together with keepers secured to the door frame which cooperate with the operating bar to effect opening and closing 'movement of the door, means being provided which initially swing the operating member f about its fulcrum to force the door in opening and closing directions, and thereafter during opening movement of the door reciprocates said bar upwardly so that the lower end thereof is retracted from its projecting position below the lower edge of the door in order that said edge will be free of depending projections so as to clear the usual car loading platform. Y l

Other objects of my inventionwill more 3o clearly appear from the description and claims hereinafter following.

In the drawings forming a part of this specification, Fig. 1 is a side elevation of a portion of a refrigerator car showing my improvements in connection therewith. Fig. 2 is a vertical, sectional view on anenlarged scale, partly broken away, corresponding substantially to the line 2 2 of Fig. 1. Fig. 3 is a part sectional, part elevational view of the lower keeper and end ofthe operating bar, taken substantially upon the line ,3-3 lof Fig. 2. And Fig; 4c, is a sectional view taken substantially Vupon the line 1 -4 of Fig. l.

A In said drawings, the side of the car is shown as provided witha door frame 10 and ltwo pivoted doors 11 and 12. The doors have the usual bevelled meeting edges and the customary insulation or packing is employed 5D between the meeting edges of the doors 192e. serieu No. 115,061.

themselves, and between the doors and the door frame.. The doors 11 and 12 are mounted for swinging movement about vertical axes, being supported by suitable hinges 13-13. r

The invention comprises broadly an operating bar or member A; keepers B-B; andy actuating mechanism C. l r

The door operating member A is in the form of a substantially flat bar of rectangular cross section having its opposite ends bevelled asbest shown in Fig. 3. The bar A is preferably -disposed vertically of the door 12 and adjacent the inner edge thereof, and said bar is fulcrumed intermediate its ends and slidably mounted upon the door by means of the bracket 14. Said bracket comprises a base plate 15 and outer strap 16,r said strap and plate being secured in position by suitable bolts indicated at 17-17. Upon each of the bolts 17 at opposite sides of the bar A, between the strap 16 andplate 15, are mounted anti-friction rollers 18-18, said rollers providing a fulcrum interme'diatethe ends of the bar A, and permitting vertical reciprocation thereof. A guide bracket 19 is secured to the door 12 adjacent the upper edge thereof and confines the upper end portion of the bar A to lmovement in aplane substantially parallel to the plane of the door 12, while permitting swinging of said end with respect thereto and permitting vertical reciprocation of the bar A. The lower end of the barA is movably confined in asupport which encases a portion of theactuating mechanism C hereinafter describedi The keepers B-B are two in number, one being secured to the door frame above' the top edge of the door 12, and the other being secured to the door frame below thebottom edge of the door 12. The lower keeper comprises a member having flanges. 2Ov and 21 through which are extended securing bolts for fixing the keeper in position. The lower keeper isl also provided with' a' bottom wall `22 and with upstanding portions providing cam surfacesdefining a cam slot23, ywhich slot, is inclined at an angle tothek plane of the door frame and is ada ted for the reception of the lower end of t e operating bar spaced fromv the door 12.

A. The lower keeper is so arranged that the slot 23 opens outwardly'toward the forward edge ofthe door 12 as shown. The upper keeper is identically similar to the lower keeper thus far described, except that instead of the cam slot opening outwardly toward the edge of the door 12, as in the ycase of the lower keeper, the cam slot opens in the opposite ldirection or yaway from the free edge of the door 12, as'f'mdicatedl at 24. The upper keeper also differs from the lower keeper in that the wall which would' corriespond to the lower wall 22 of the lower keeper, Y

is omitted so as to permit reciprocatory movement of the upper end of thel operating bar upwardly past the keepery asindicat'e'd in d'ottedjlines of'Fig. 1 in' certain positionsA of the parts. Y Y

' The fiange'portion 21 of 'the lower keeper is vextended to the left .as shown .in Fig. 1 be-V yond the freeedge of the' door 12, yand has pivotally mounted. thereon a latch member 25 adapted to coact with a plate 26 secured to the door 1:1 adjacent the'lower right hand corner f thereof. The l'atc'hx25 serves to retain the y 280 for.apurposehereinafter described'. The

linner surface-ofy the wall 29 is provided with anLshaped slot 30', oneporti-on offsaid 'slot 'extending in a horizon-tal direction, and' the remaining portion extending vertically, as

s best seenin dotted linesin Fig. 1. vlPivotawlly mounted upon the outer wall 29 by means of a' pivot pin '31 is an operating lever 32'.' Said lever is provided at the side of the pivot pin 31,0pposite to the handle of the lever, with an angular-,portion 33,,the angular'portion of t-he lever having a slot 34 formed therein- Fixed upon th-e'lower end of thevmember A is a pinV 3`5`whichl projects through the slot' 34 the angularportionof the lever, -and into thegllshaped slot 30 formed in theinner surface ofthepwall 29. "The-handle of thelever extends outwardly from the housing, and vmounted fupon said handleis. a gravity latch 36, said latch Vbeing provided with ,alateralflange having. anopening therein adapted to coin'- Ycide withfthe ,opening inthe langefof the latch 25to permit theinsertion of a securing memvb'erwhe'n' the doorV isclosed.

In operation assuming the idoors" tov be closed as shown in Figl of the drawings and that itr is desired t'o'open thesame, gravity latch 36 is first disconnected, after' which the lever 32 is swung in a clockwise direction about its pivot 31. lever effects clockwise movement of the angular portion 33 of the lever and carries therewith the pin 3'5which is fixed to the lower end of the bar A inra horizontal direction which causes swinging of the member about the 'ful'crum' 14 andthe ends'thereof in opposite :directions and' by reason of the traverse of said ends along the cam slots in the keepers, the door isi forced in an opening direction. Further movement of the lever 32 causes additional travel eof the angular portion thereof which lifts the pin 35 on the .member A along the vertical lportionof the slot 30, resulting in elevationof the bar A, the longitudinal movement of the bar being permitted by its 'slidable connection with the fulcrum member 14. `VVhenrthe lever 32'h`as elevated the bar sufficiently to clear the lower edge of the doorthe gravity latch 36 whichI during the latter portion of movement of the lever has ridden over the projection 280 then falls behind said projection and prevents return of the lever towardV its initial position andthereby maintains the bar A in lelevated relation. The door 12 may now be easily swung completely open, and the door 11 also may be easily opened after disen'gaging the latch-27 by swinging it to its depending position.

This movement of theV l When it is desired to `closetlie doors, the j door 11 is first` swung 'in a closing direction,`

after "which the door 12 is moved toward closed-position. The gravity latch 36 is then disengaged to ypermit the descentofthe 'bar A Vuntil the ends-thereof are in position to` enter the cam slots in the keepers. Further movement ofthele'ver'32 in a counter-clockwise di-V rection willl effect counter-clockwise swinging of the opposite ends of the bar A, which traversingthe cam slots of the keeper willforce the doors in a closing direction,. after which the latch 27 may be engaged to'hol'd the door.,

11 closed, and the latch 36 may be secured thereto.- Y Y While I have `herein shown and described Yroo what I nowconsi'der the preferred mann-erlof' carrying out the invention,.the sameris merely illustrative, and I contemplate all changes and-modifications thatV come within the scope kof the claims appended hereto.

VIclaimpv `V 1. In a door koperating mechanism of the character described, the combination'with a door frame and av pivotedlvdoor; of a continj uouslyrigidoperatingmember fulcrumed inj j Y termediateits'ends for swinging movement;

keeper means on said frameadjacent Vopposite vedges of said` door for cooperation with the opposite ends of saidmjember during the swinging movement thereof for effectingy ,opening and lclosing;movementof said door;v .and meansl for" longitudinally shifting said memberto fetractfthe projecting edge thereof at the lower portion of said door to a position within the confines of the door. y

2. In a door operating mechanism, the combination with a door frame and a pivoted door; of an elongated, continuous, operating member, mounted on said door for combined lateral and longitudinal movement; keeper means on said frame adapted to co-act with keeper engaging means at the upper and lower ends of said operating member, to effect opening and closing of the door; operating means for swinging said operating member in a plane parallel to the door to effect opening and closing of theI door and then reciprocating said operating member lengthwise and lift the lower end thereof above the lower edge of the door; and guide means for said operating member to produce the swinging and reciprocable movement thereof, successively, while said operating means is moved in one direction.

3. In a door operating mechanism, the combination with a door frame and a pivoted door; of a unitary operating member mounted on said door; keeper means mounted on said frame, simultaneously engageable by the opposite ends of said operating member and having cam surfaces extending in a direction so that the swinging movement of the operating member causes traverse of said cam surfaces to effect opening and closing movements of the door; lever means pivoted on the door for actuating said operating member; guide means fixed to the door between the ends of the bar, in which the bar is both slidable lengthwise and swingable transversely across the face of the door; and cooperating means on said lever and member for initially swinging said operating member to cause said traverse of said keepers and thereafter reciprocating said operating member lengthwise to shift the position thereof relative to the door upon said lever means being moved in one direction. I

4. In a door operating mechanism, the combination with a door frame and a pivoted door; of an operating bar mounted on said door for reciprocable and swinging movement, the uper end of said bar projecting beyond the door in all positions thereof, the lower end of said bar in one position thereof adapted to project outwardly from the lower edge of said door; keeper means mounted on said frame and adapted to vco-act with the upper end of said bar and with the lower end thereof when projected and during the swinging movements ofthe bar to effect opening and closing movements of the door; lever means for swinging said bar during a portion of its action to cause traverse of said keepers, and during another portion of its action reciprocating said bar to shift the position thereof relative to said door, to withdraw the projecting end thereof within the confines of the lower edge of said door, said lever means being movable in the same direction throughout said operation; and means operable when said operating member is shifted with respect to said door for automatically locking the same in its shifted position.

5. In a door operating mechanism, thevcombination with a door frame and a pivoted door; of keeper means mounted on said door frame; an operating lever having the opposite ends thereof co-operating with said keeper means; means for mounting said operating bar between the ends thereof on said door, said mea-ns including a fixed bracket through which the bar extends, to confine said bar to sliding and swinging movement in said bracket; anti-friction elements in said bracket arranged at opposite sides of the bar; and means for imparting successive swinging and longitudinal movements to said bar to cause traverse of said keepers to effect opening and closing movements of said door and shift the position of said bar relative to the door.

6. In a door operating mechanism of the character described, the combination with a door frame and a pivoted door; of a bracket mounted on said door and provided with a slot having communicating horizontal and vertical portions; an operating bar; means on said door between the ends of said bar for pivotally and slidably mounting the same on the door; a pin fixed to said bar and slidable in said slot; a lever pivoted to said door and also pivotally connected with said pin to cause the same to traverse said slot; and keeper means mounted on said frame and adapted to co-act with the ends of said operating bar to effect opening and closing movements of said door during movement of said bar, and lift the bar while said pin is traversing the horizontal and vertical portions of said slot.

In witness that I claim the foregoing I Vhave hereunto subscribed my name this 25th day of May, 1926.

STACY B. HASELTINE. 

